Thirukkural-On Virtue-Truthfulness-Kural-296

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All the world esteems a truthful man, for whom Other virtues come without any effort.

Such a man does not have to undergo physical privations and penance to merit the other virtues. These virtues come automatically to a Man of truth.

'Silapathikaram' expresses this thought very forcefully by asking, what rare thing is impossible for a person who does not deviate from the Truth?

Vaaimaiyin vaza adhu manuyir ombunark
Kiyaavadhum undo eaidhaa arumporul

(Silapathikaaram-11; 158-9)